Home / 2,107.70-3,155.31-1,562.33

Finding the Fourth Proportional to 2,107.70, 3,155.31 and 1,562.33

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Solution

The fourth proportional to 2,107.70, 3,155.31 and 1,562.33 is: 2,338.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107.70 : 3,155.31 = 1,562.33 : x
  2. Step 2: Convert to fraction form
    2,107.70/3,155.31 = 1,562.33/x
  3. Step 3: Cross multiply
    2,107.70x = 3,155.31 × 1,562.33
  4. Step 4: Simplify right side
    2,107.70x = 4,929,635.47
  5. Step 5: Solve for x
    x = 4,929,635.47/2,107.70
  6. Step 6: Final answer
    x = 2,338.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.